Method of injecting and reacting super-critical phase carbon dioxide without pressure loss

Abstract

Disclosed is provided a method of injecting and reacting super-critical phase CO2 without pressure loss. The method includes preparing gas phase CO2, producing liquid phase CO2 by pressurizing the prepared gas phase CO2, producing super-critical phase CO2 by adjusting a temperature of the produced liquid phase CO2, filling incompressible fluid in a reactor and an injection line from an injection unit and pressurizing the incompressible fluid, injecting the produced super-critical phase CO2 into the reactor, and controlling a pressure of the injected super-critical phase CO2 by a pressure regulating unit.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit under 35 U.S.C. §119 of Korean Patent Application No. 10-2013-0093066 filed on Aug. 6, 2013 in the Korean Intellectual Property Office, the entirety of which disclosure is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1) Field of the Invention[0003]The present invention relates to a method of injecting and reacting super-critical phase carbon dioxide (CO2), and more particularly to a method of continuously maintaining the pressure of super-critical phase CO2 so that the pressure of the super-critical phase CO2 is not lost, that is, the super-critical phase of the super-critical phase CO2 is not broken when a sample reacts with the super-critical phase CO2 by injecting the super-critical phase CO2 into a reactor during a reaction test of the sample based on the super-critical phase CO2.[0004]2) Background of Related Art[0005]Super-critical phase carbon dioxide (CO2) has been usefully u...

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Benefits of technology

[0015]An object of the present invention is to provide a method of making a reaction of reproducing a real geological storage environment of CO2 through the reaction between a sample and super-critical phase CO2 without phase change resulting from adiabatic expansion of the super-critical phase CO2 by minimizing temperature and pressure loss in a reaction experiment using the super-critical phase CO2.

[0017]In order to accomplish the above object, there is provided a method of injecting and reacting super-critical phase CO2 without pressure loss. The method includes preparing gas phase CO2, producing liquid phase CO2 by pressurizing the prepared gas phase CO2, producing super-critical phase CO2 by adjusting a temperature of the produced liquid phase CO2, filling incompressible fluid in a reactor and an injection line from an injection unit and pressurizing the incompressible fluid, injecting the produced super-critical phase CO2 into the reactor, and controlling a pressure of the injected super-critical phase CO2 by a pressure regulating unit.

[0022]There is provided a method of injecting and reacting super-critical phase CO2 without pressure loss. The method includes (A) filling incompressible fluid in a reactor and an injection line from an injection unit and pressurizing the incompressible fluid, (B) preparing gas phase CO2, (C) producing liquid phase CO2 by pressurizing the prepared gas phase CO2, (D) producing super-critical phase CO2 by adjusting a temperature of the produced liquid phase CO2, (E) injecting the produced super-critical phase CO2 into the reactor, and (F) controlling a pressure of the injected super-critical phase CO2 by a pressure regulating unit.

[0027]As described above, according to the present invention, in the reaction experiment using the super-critical phase CO2 in the laboratory, since the pressure loss of the super-critical phase CO2 can be prevented, the phase change of the super-critical phase CO2 can be prevented. Therefore, the reaction mechanism of the super-critical phase CO2 under the ground can be exactly simulated.

Problems solved by technology

In addition, since the super-critical phase CO2 exists in a high density state that is impossible to gas, the solubility of various materials may be increased.

However, the critical point cannot be maintained due to the adiabatic expansion, so that the phase of the super-critical phase CO2 is changed.

Accordingly, undesirable reaction may be caused in a reaction experiment of the sample in the reactor.

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